. >> hi, i'm emily rutheford. stephanie talked about reversibility. i'm wondering if the other panelists had any thoughts on that and also how you're defining it and what you understand it to be? >> i mean, i think reversibility could mean a lot of thingings. s, the key question is how are they doing it? reversibility, also implies that there will be some costs. so, you know, in taking down end strength in the army and marine cor corps, they've said that they're going to try to protect the mid level officers and ncos. that's smart. if you do need to rebuild your forces quickly, those are the people you need in order to train new recruits that are coming in. but it's still, you know, it's never wout a cost. those personnel are more expensive. so now your mix of personnel will be changing so that your cost per person, your average cost, is going to be a little higher because you're keeping more of those middle-ranked people. the same is true with the defense industrial base. you can cut programs and then make some investments that mitigate, you know, th